/* =========================================================
   soraha design — Blog
   blog/index.html + blog/{slug}/index.html 共通スタイル
   ========================================================= */

/* =========================================================
   Blog: 共通 (一覧 + 個別)
   ========================================================= */

.blog-main {
  padding-top: calc(var(--header-h) + 32px);
  padding-bottom: 80px;
}

.blog-breadcrumb {
  font-size: 13px;
  color: var(--c-text-mute);
  margin-bottom: 24px;
}

.blog-breadcrumb a {
  color: var(--c-text-sub);
  text-decoration: underline;
  text-decoration-color: var(--c-line);
  text-underline-offset: 3px;
}

.blog-breadcrumb a:hover {
  color: var(--c-text);
}

.blog-breadcrumb-sep {
  margin: 0 8px;
  color: var(--c-text-mute);
}

/* =========================================================
   Blog Index (一覧)
   ========================================================= */

.blog-index-header {
  text-align: center;
  margin-bottom: 56px;
  padding-bottom: 40px;
  border-bottom: 1px dashed var(--c-line);
}

.blog-index-eyebrow {
  display: inline-block;
  font-family: var(--f-en);
  font-size: 13px;
  color: var(--c-text-mute);
  letter-spacing: .2em;
  margin-bottom: 12px;
}

.blog-index-title {
  font-family: var(--f-jp-h);
  font-size: clamp(28px, 4vw, 40px);
  line-height: 1.4;
  margin-bottom: 16px;
}

.blog-index-lead {
  color: var(--c-text-sub);
  max-width: 540px;
  margin: 0 auto;
}

/* 記事カード一覧 */
.blog-card-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 32px;
}

.blog-card {
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--r-lg);
  overflow: hidden;
  transition: transform .25s, box-shadow .25s;
  display: flex;
  flex-direction: column;
}

.blog-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--c-soft-shadow);
}

.blog-card-thumb {
  aspect-ratio: 16 / 9;
  background: var(--c-accent-3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 48px;
  color: var(--c-text-mute);
  overflow: hidden;
}

.blog-card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.blog-card-body {
  padding: 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.blog-card-meta {
  display: flex;
  gap: 12px;
  font-size: 12px;
  color: var(--c-text-mute);
  font-family: var(--f-en);
  letter-spacing: .08em;
  margin-bottom: 10px;
}

.blog-card-cat {
  background: var(--c-accent-3);
  color: var(--c-text);
  padding: 2px 10px;
  border-radius: var(--r-pill);
  font-family: var(--f-jp);
  letter-spacing: 0;
}

.blog-card-title {
  font-family: var(--f-jp-h);
  font-size: 18px;
  line-height: 1.5;
  margin-bottom: 12px;
  color: var(--c-text);
}

.blog-card-excerpt {
  font-size: 14px;
  color: var(--c-text-sub);
  line-height: 1.75;
  margin-bottom: 18px;
  flex: 1;
}

.blog-card-readmore {
  font-family: var(--f-en);
  font-size: 13px;
  color: var(--c-text);
  letter-spacing: .08em;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.blog-card-readmore::after {
  content: "→";
  transition: transform .2s;
}

.blog-card:hover .blog-card-readmore::after {
  transform: translateX(4px);
}

/* =========================================================
   Blog Article (個別記事)
   ========================================================= */

.blog-article {
  max-width: 720px;
  margin: 0 auto;
}

.blog-article-header {
  text-align: center;
  margin-bottom: 48px;
  padding-bottom: 32px;
  border-bottom: 1px dashed var(--c-line);
}

.blog-article-meta {
  display: flex;
  justify-content: center;
  gap: 16px;
  font-size: 12px;
  color: var(--c-text-mute);
  font-family: var(--f-en);
  letter-spacing: .08em;
  margin-bottom: 16px;
}

.blog-article-cat {
  background: var(--c-accent-3);
  color: var(--c-text);
  padding: 4px 12px;
  border-radius: var(--r-pill);
  font-family: var(--f-jp);
  letter-spacing: 0;
}

.blog-article-title {
  font-family: var(--f-jp-h);
  font-size: clamp(24px, 4vw, 34px);
  line-height: 1.45;
  margin-bottom: 16px;
}

.blog-article-lead {
  color: var(--c-text-sub);
  max-width: 600px;
  margin: 0 auto;
}

.blog-article-hero {
  aspect-ratio: 16 / 9;
  background: var(--c-accent-3);
  border-radius: var(--r-lg);
  overflow: hidden;
  margin-bottom: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--c-text-mute);
  font-size: 14px;
}

.blog-article-hero img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* 本文中の挿入画像（章間など） */
.blog-article-figure {
  margin: 48px 0;
  aspect-ratio: 16 / 9;
  background: var(--c-accent-3);
  border-radius: var(--r-lg);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--c-text-mute);
  font-size: 14px;
}
.blog-article-figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* コメント欄（Disqus） */
.blog-comments {
  margin-top: 80px;
  padding-top: 48px;
  border-top: 1px solid var(--c-line);
}
.blog-comments-title {
  font-family: var(--f-jp-h);
  font-size: 22px;
  font-weight: 500;
  margin-bottom: 24px;
  color: var(--c-text);
  letter-spacing: .08em;
}

/* 本文 typography */
.blog-content {
  font-size: 16px;
  line-height: 2;
  color: var(--c-text);
}

.blog-content h2 {
  font-family: var(--f-jp-h);
  font-size: 24px;
  margin: 64px 0 24px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--c-accent);
  line-height: 1.5;
}

.blog-content h2:first-child {
  margin-top: 0;
}

.blog-content h3 {
  font-family: var(--f-jp-h);
  font-size: 19px;
  margin: 40px 0 16px;
  line-height: 1.55;
}

.blog-content h3::before {
  content: "🌿 ";
  margin-right: 4px;
}

.blog-content p {
  margin: 0 0 1.5em;
}

.blog-content a {
  color: var(--c-text);
  text-decoration: underline;
  text-decoration-color: var(--c-accent);
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
  transition: text-decoration-color .2s;
}

.blog-content a:hover {
  text-decoration-color: var(--c-text);
}

.blog-content ul,
.blog-content ol {
  margin: 0 0 1.5em;
  padding-left: 1.5em;
  list-style: revert;
}

.blog-content ul li,
.blog-content ol li {
  margin: 0 0 0.5em;
}

.blog-content strong {
  font-weight: 700;
  background: linear-gradient(transparent 60%, var(--c-accent-3) 60%);
  padding: 0 2px;
}

.blog-content em {
  font-style: italic;
  color: var(--c-text-sub);
}

.blog-content blockquote {
  margin: 2em 0;
  padding: 1em 1.5em;
  background: var(--c-accent-3);
  border-radius: var(--r-md);
  color: var(--c-text-sub);
  font-style: italic;
}

.blog-content code {
  background: var(--c-accent-3);
  padding: 2px 8px;
  border-radius: 4px;
  font-family: var(--f-en);
  font-size: 14px;
}

.blog-content hr {
  margin: 56px auto;
  width: 60px;
  border: none;
  border-top: 1px dashed var(--c-line);
}

/* 表 */
.blog-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 2em 0;
  font-size: 14px;
  background: var(--c-surface);
  border-radius: var(--r-md);
  overflow: hidden;
  box-shadow: var(--c-soft-shadow);
}

.blog-content table thead {
  background: var(--c-accent-3);
}

.blog-content table th,
.blog-content table td {
  padding: 12px 14px;
  text-align: left;
  border-bottom: 1px solid var(--c-line);
  vertical-align: top;
}

.blog-content table th {
  font-family: var(--f-jp-h);
  font-weight: 400;
  color: var(--c-text);
}

.blog-content table tbody tr:last-child td {
  border-bottom: none;
}

.blog-content table tbody tr:hover {
  background: rgba(212, 184, 150, 0.06);
}

@media (max-width: 640px) {
  .blog-content table {
    font-size: 13px;
    display: block;
    overflow-x: auto;
  }

  .blog-content table th,
  .blog-content table td {
    padding: 10px 12px;
    white-space: nowrap;
  }
}

/* セクション挿絵 */
.blog-section-image {
  margin: 40px 0;
  border-radius: var(--r-lg);
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: var(--c-accent-3);
}

.blog-section-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* 注意ブロック */
.blog-callout {
  background: var(--c-accent-3);
  border-left: 4px solid var(--c-accent);
  padding: 20px 24px;
  margin: 2em 0;
  border-radius: var(--r-md);
  font-size: 14px;
  line-height: 1.85;
}

.blog-callout p:last-child {
  margin-bottom: 0;
}

/* CTA エリア（記事末尾） */
.blog-cta {
  margin-top: 80px;
  padding: 40px 32px;
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--r-lg);
  text-align: center;
}

.blog-cta-title {
  font-family: var(--f-jp-h);
  font-size: 20px;
  margin-bottom: 12px;
}

.blog-cta-lead {
  color: var(--c-text-sub);
  font-size: 14px;
  margin-bottom: 24px;
}

.blog-cta-buttons {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

/* 関連記事 */
.blog-related {
  margin-top: 80px;
  padding-top: 40px;
  border-top: 1px dashed var(--c-line);
}

.blog-related-title {
  font-family: var(--f-jp-h);
  font-size: 16px;
  margin-bottom: 20px;
  text-align: center;
  color: var(--c-text-sub);
}

.blog-related-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}

.blog-related-item {
  padding: 16px;
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--r-md);
  font-size: 13px;
  line-height: 1.6;
  transition: border-color .2s, transform .2s;
}

.blog-related-item:hover {
  border-color: var(--c-accent);
  transform: translateY(-2px);
}

.blog-related-item-cat {
  display: inline-block;
  font-size: 11px;
  color: var(--c-text-mute);
  font-family: var(--f-en);
  letter-spacing: .08em;
  margin-bottom: 6px;
}

.blog-related-item-title {
  color: var(--c-text);
  font-weight: 500;
}

/* 戻るリンク */
.blog-back {
  margin-top: 48px;
  text-align: center;
}

.blog-back-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--f-en);
  font-size: 13px;
  color: var(--c-text-sub);
  letter-spacing: .08em;
  transition: color .2s;
}

.blog-back-link:hover {
  color: var(--c-text);
}

.blog-back-link::before {
  content: "←";
  transition: transform .2s;
}

.blog-back-link:hover::before {
  transform: translateX(-4px);
}

/* レスポンシブ */
@media (max-width: 640px) {
  .blog-main {
    padding-top: calc(var(--header-h) + 16px);
  }

  .blog-article-title {
    font-size: 22px;
  }

  .blog-content h2 {
    font-size: 20px;
    margin: 48px 0 20px;
  }

  .blog-content h3 {
    font-size: 17px;
    margin: 32px 0 14px;
  }

  .blog-content {
    font-size: 15px;
    line-height: 1.95;
  }

  .blog-card-list {
    grid-template-columns: 1fr;
  }

  .blog-cta {
    padding: 32px 20px;
  }
}